Measuring-pump.



L'VlT/VESSES 0. s. JONES.

MEASURING PUMP.

PATENT-ED OCT. 29 1907.

APPLICATION FILED MAY 31,1907.

2 SHEETS-SHEET 1.

,1 TTORNE Y5 No. 869,246. PATENTED OCT. 29, 1907. G. S. JONES.

MEASURING PUMP. APILIOATION FILED MAY 31.1907.

' 2 SHEETSSHEET 2.

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Jig/ LW-B A TTOR/VE VS CHARLES s. JoNEs, OF MARION, INDIANA.

ME ASURING-PUMP.

' Specification of Letters Patent.

Patented. 0a. 29, 1907;

Application filed May 31. 1907. serial No. 376,538.

To all whom it may concern:

Be itknown that I, OnAnLEs S. JONES, a citizen of the United States,residing at Marion, in the county of Grant and State of Indiana, haveinvented a new and useful Measuring-Pump, of which the following is aspecification.

This invention relates to measuring pumps, and'has for one of itsobjects to provide a device of simple construction by which any desiredquantity of liquid may be delivered from a tank or other receptacle in acontinuous uninterrupted stream, and in which the quantity so deliveredwill be accurately measured, and its cost computed and indicated.

A further object of the invention is to provide a computing device inthe form of a series of tables which may be readily adjusted intooperative relation, ,or to exposed position to co-act with a movablemember of the pumping mechanism for the purpose of indiating the cost ofthe quantity of fluid delivered.

With these. and other objects in view, as will more fully hereinafterappear, the invention consists in certain novel features of constructionand arrangement of parts, hereinafter fully described, illustrated inthe accompanying drawings, and particularly-pointed out in the appendedclaims, it being understood that various changes in the form,proportions, size and minor details of the structure may be made withoutdeparting from the spirit or sacrificing any of the advantages of theinvention. I

In theaccompanying drawings: -Figure 1 is a sectional elevation of a.measuring pump constructed in accordance with the'invention. Fig. 2 is atransverse sectional viewof the same on the line 22 of Fig. 1. Fig. 3 isa front elevation of the computing device.

I Fig. 4 is a sectional plan view of the same. Fig. 5 is a detail viewof the, computing table. sectional view of the delivery nozzle.

Similar numerals of reference are employed to'indi: cate correspondingparts throughout the several figures of the drawings.

In carrying out the present invention, a pair of pumping cylinders 1011are arranged in a tank or other receptacle, and in these cylinders arepistons 12 Fig. 6 is a detail and 13. In the lower end of each cylinderis'an inlet port 16, normally closed by a valve 17 which is opened I onthe up stroke of the piston for the purpose of admitting liquid to thecylinder. On the down strokeof the piston the valve is closed, and theliquid is expelled through a pipe 18, the pipes from both cylindersleading to a common discharge nozzle 19.through which a continuousstream of liquid is discharged, so long as the pump is kept inoperation; a

The operating mechanism for the pump is mounted in a suitable frame 20which has bearings for a pair of piston rods 21 and 22, and these areconnected byblocks 23-24 of an endless link belt 25,- the connectionswith the rods and with the belt being adjustable. The link belt 25passes over a pair of sprocket wheels 26, the upper of said sprocketwheels being carried by a shaft 27 to which is secured a handled crank28 which may be manually operated first in one direction and then in theother direction for the purpose of alternately operating the pumps, andas one of the piston is always descending, the stream of liquiddischarged is continuous and uninterrupted.

In order to indicate the number of full strokes of the pump and thequantity of liquid delivered, an indicating dial 30 is employed, saiddial being provided with suitably marked graduations over which travelsa pointer31 carried by a shaft 32. On the shaft is aratchet wheel 33with which engages a pawl 34 having a shoulder 35 disposed in the pathof movement of the block 23, and each time the block 23 is elevated tothe fullest extent it will engage with the projecting shoulder of thepawl and wil raise the latter for the purpose of causing its engagementwith the other tooth of the ratchet. When the block moves downward,.thepawl is retracted by a spring 36, so that the ratchet wheel will beadvanced to the extent of a single tooth, and the pointer will be movedto a corresponding extent, thus indicating the number of completestrokes of the piston, and the number of times the cylinders areemptied, so that the quantity of liquid discharged may be readilyindicated.

At one side of the standard are arranged projecting brackets in whichare journaled the upper and lower ends of a pair of rollers 40 41, theupper ends of which are provided with milled-knobs 42, so that they maybe conveniently turned. These rollers carry a computing strip44 on whichis marked a series of'vertical tables each based on different values,that is to say, taking one gallon or one quart as a unit of liquidmeasurement, the tableswill be based at a certain price per gallon, andeach table is different from the other, so

that the table bearing the current market rate may be readily exposedto, view while the others are concealed. The rollers are arranged withina suitable casing 45,

. and said casing is provided with a vertical slot 46 of a widthsufiicient to expose but one bf the tables,- so that the others may beconcealed in order to prevent confusion.

Secured to the piston rod block 23 is a pointer 47 that is arranged toproject over the slot 46, so that it may cooperate with any of thetables exposed at the slot for the purpose of'computing the value of theliquid delivered, that is to say, if one gallon of liquid is de1iv-,ered, the piston rod will move-a predetermined distance, and thisdistance measured by the pointer 47 on the table 44 will indicate on thetable the value of the liquid. With adevice'constructed in accordancewith this invention, the quantity and the value of the liquid dischargedmay be readily indicated without the necessity of mental calculation.

In order to prevent dripping at the spout or nozzle 19, 'the spoutcarries a downwardly extending tube 60 having an outwardly flared loweredge 61, and the periphery of the spout is concaved as indicated at 62.Over the tube and the spout fit the nozzle proper in the form ofatapered tube 63, the lower end of which is provided with an inturnedflange 64. The nozzle member forms in connection with the spout and thetube 60 a pair of annular chambers, in both of which a partial -vacunmis created by the downward rush of the liquid,

and when the current ceases the influx of air at the dis charge end ofthe nozzle to refill the vacuum spaces willcause the liquid to flowupward and cling in the formof a film to the interior ofthe-nozzle, sothat dripping ,will be prevented.

I claim: a

1. In a measuring',pump, the combination with a pair of pumping devicesincluding piston rods, of a common discharge to which the pumpingdevices are connected, a sprocket chain, means for operating the same,connecting blocks between the opposite runs of the sprocket'chain, andthe piston rods, and an indicating device having an operating memberarrange'd in the path of movement of one of said blocks.

2. In a measuring pump, a pair of pumping devices including piston rods,9. sprocket chain, the opposite runs of which are connected to saidpiston rods, a block projecting from said sprocket chain, meansfor oprating the sprocket chain, an indicating device including a ratchetwheel, and a pawl engaging said ratchet wheel, said pawl being disposedin the path of movement of said block.

3. In a measuring pump, a pair of pumping cylinders, a discharge pipe towhich both cylinders are connected, pistons arranged in the cylinders,piston rods connected to the pistons, a frame, a pair of sprocketwheels, and sprocket wheel shafts supported by the frame, an endlesslink belt passing over the sprocket wheels, blocks connecting theopposite runs of the belt to the piston rods, an op crating crank on oneof the shafts, an indicator including a ratchet wheel, a pawl foroperating said ratchet wheel, said pawl having a roller disposed in thepath of movement of one of the blocks, and a spring for retracting thepawl.

In testimony that I claim the foregoing as my own, I-

CHARLES S. JONES.

Witnesses Cums DREIT'FER, Mou'roN Km'rn.

